Table 2.

Characteristics and study quality of primary studies included for individual participant data meta-analyses

Authors	Country	Tool	Sample size	Prevalence (Standard Cut-off)	Risk of Biasa
Abdel Wahed 2016	Egypt	DASS21	442	45.2%	8
Al-Faris 2012	Saudi Arabia	BDI	435	23.4%	9
Angkurawaranon 2016	Thailand	PHQ9	1,014	6.5%	7
Baldassin 2008	Brazil	BDI	480	9.4%	8
Bassols 2014	Brazil	BDI	232	3.9%	7
Berner 2014	Chile	GHQ-12	384	6.5%	7
Bore 2016	Australia	DASS21	127	26.8%	8
Bunevicius 2008	Lithuania	HADS	331	14.2%	8
Del-Ben 2013	Brazil	BDI	150	2.0%	8
Goebert 2009	US	CESD	1,607	20.7%	10
Gold 2015 + Data	US + Others	PHQ-2	473	17.7%	7
Güleç 2005	Turkey	BDI	684	22.8%	8
Iqbal 2015	India	DASS42	353	36.5%	8
Karaoglu 2011	Turkey	HADS	485	28.0%	8
Leao 2011	Brazil	BDI	155	3.2%	8
Manaf 2016	Malaysia	PHQ9	206	27.2%	7
Mayda 2010	Turkey	BDI	213	32.4%	8
Mojs 2015	Poland	KADS6	414	6.7%	8
Mousa 2016	US	PHQ2	336	16.4%	7
Oku 2015	Nigeria	GHQ-12	450	2.0%	9
Peleg-Sagy 2012	Israel	CESD	201	48.2%	8
Quince 2012	UK	HADS	2,446	6.5%	9
Ristić-Ignjatović 2013	Serbia	BDI	699	5.8%	7
Samaranayake 2011	New Zealand	PHQ9	575	11.5%	8
Saravanan 2014	Malaysia	DASS21	358	14.8%	8
Sherina 2005 + Tin 2015	Malaysia	PHQ9	537	16.8%	8
Shindel 2011 + Smith 2010	US	CESD	2,306	41.2%	8
Shriyan 2011	India	DASS42	50	12.0%	8
Sreeramareddy 2007	Nepal	GHQ12	402	59.0%	9
Torres 2016	Brazil	BDI	479	7.9%	6
Wolf 2017	US	PHQ-2	331	8.2%	7
Youssef 2016	Trinidad & Tobago	PHQ9	389	37.3%	8
Yusoff 2011	Malaysia	BDI	92	2.2%	8
Yusoff 2013	Malaysia	DASS21	194	29.9%	8
		Total	18,030	19.4%	Median = 8

Remarks: BDI Beck Depression Inventory, CES-D Center for Epidemiological Studies-Depression, DASS-21/42 Depression Anxiety Stress Scales-21 items/ 42 items, GHQ-12 General Health Questionnaire-12 items, HADS Hospital anxiety and depression scale, KADS Kutcher Adolescent Depression Scale, PHQ-2/-9 Patient Health questionnaire-2 items / 9 items

^aIt is the total number of items rated as “Low” risk (scored as 1)